Home / 21,167,996.20-31,710,003.90-12,622,949.80

Finding the Fourth Proportional to 21,167,996.20, 31,710,003.90 and 12,622,949.80

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Solution

The fourth proportional to 21,167,996.20, 31,710,003.90 and 12,622,949.80 is: 18,909,384.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,996.20 : 31,710,003.90 = 12,622,949.80 : x
  2. Step 2: Convert to fraction form
    21,167,996.20/31,710,003.90 = 12,622,949.80/x
  3. Step 3: Cross multiply
    21,167,996.20x = 31,710,003.90 × 12,622,949.80
  4. Step 4: Simplify right side
    21,167,996.20x = 400,273,787,387,504.25
  5. Step 5: Solve for x
    x = 400,273,787,387,504.25/21,167,996.20
  6. Step 6: Final answer
    x = 18,909,384.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.